EP 1236017 B1 20050914 - X-RAY TOMOGRAPHY BGA ( BALL GRID ARRAY ) INSPECTIONS
Title (en)
X-RAY TOMOGRAPHY BGA ( BALL GRID ARRAY ) INSPECTIONS
Title (de)
RÖNTGENTOMOGRAPHISCHE BGA ( BALL GRID ARRAY ) PRÜFUNGEN
Title (fr)
INSPECTIONS BGA (BALL GRID ARRAY) PAR TOMOGRAPHIE RAYONS X
Publication
Application
Priority
- US 0041931 W 20001107
- US 16393299 P 19991108
Abstract (en)
[origin: WO0135051A2] An inspection method utilizing vertical slice imaging. A number of horizontal slice images, extending through an object of interest, are acquired. A vertical region of interest is defined from the data representing the horizontal slice images. A vertical slice image is constructed based upon the horizontal slice image data falling within the vertical region of interest. The vertical slice image data may be analyzed to detect defects. In addition, a method is provided to detect defects in a BGA joint. The method includes locating a center of the joint. The method may further include measuring a number of diameters through the center of the joint and applying a rule to compare the measured diameters to an expected diameter.
[origin: WO0135051A2] An inspection method (X-ray laminography or tomography) utilizing vertical slice imaging. A number of horizontal slice images, extending through an object of interest, are acquired. A vertical region of interest is defined from the data representing the horizontal slice images. A vertical slice image is constructed based upon the horizontal slice image data falling within the vertical region of interest. The vertical slice image data may be analyzed to detect defects. In addition, a method is provided to detect defects in a BGA (ball grid array) joint. The method includes locating a center of the joint. The method may further include measuring a number of diameters through the center of the joint and applying a rule to compare the measured diameters to an expected diameter.
IPC 1-7
IPC 8 full level
G01B 15/04 (2006.01); G01N 23/04 (2006.01); G06T 7/60 (2006.01); H01L 21/60 (2006.01); H05K 3/34 (2006.01); G01R 31/308 (2006.01)
CPC (source: EP KR US)
G01B 15/04 (2013.01 - EP KR US); G01N 23/044 (2018.01 - EP US); G06T 7/62 (2016.12 - EP); G01R 31/308 (2013.01 - EP); G06T 2207/30141 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0135051 A2 20010517; WO 0135051 A3 20011213; WO 0135051 A9 20020808; AT E304695 T1 20050915; AU 3792801 A 20010606; CA 2390068 A1 20010517; CN 1409816 A 20030409; DE 60022672 D1 20051020; DE 60022672 T2 20060629; EP 1236017 A2 20020904; EP 1236017 B1 20050914; JP 2003514233 A 20030415; JP 2005142584 A 20050602; JP 2008216265 A 20080918; JP 3665294 B2 20050629; JP 4227959 B2 20090218; KR 100522560 B1 20051020; KR 20020079732 A 20021019; MX PA02004628 A 20040910
DOCDB simple family (application)
US 0041931 W 20001107; AT 00992041 T 20001107; AU 3792801 A 20001107; CA 2390068 A 20001107; CN 00816889 A 20001107; DE 60022672 T 20001107; EP 00992041 A 20001107; JP 2001536933 A 20001107; JP 2005001571 A 20050106; JP 2008119945 A 20080501; KR 20027005894 A 20020507; MX PA02004628 A 20001107